Malicious PDF — malware analysis report

Static analysis result for SHA-256 19d571a7ca19e856…

MALICIOUS

PDF

70.2 KB Created: 2021-02-14 18:39:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 842e1b12265c69607aed65a51b4ee751 SHA-1: 3022c60f87906f64cbbc505d199061755c81a929 SHA-256: 19d571a7ca19e85609ebd9e71934bd82de61ff8264ca9b92605f501ab7d76371
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://seumenha.ru/wix?keyword=tiger+zinda+hai+download+full+movie+pagalworld PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4501989/normal_6029262cd121e.pdfIn PDF document text
    • https://dagolitufewanat.weebly.com/uploads/1/3/5/3/135345669/mijepunur.pdfIn PDF document text
    • https://kelurefuvaw.weebly.com/uploads/1/3/0/9/130969237/5df2b56c.pdfIn PDF document text
    • https://venolebibu.weebly.com/uploads/1/3/5/3/135348563/9665491.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469103/normal_60121811c6832.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387061/normal_5fc5959f1f8b1.pdfIn PDF document text
    • http://kojibataruv.iblogger.org/bewitched_theme_sheet_music_free.pdfIn PDF document text
    • https://budasanufewe.weebly.com/uploads/1/3/5/3/135323580/linoguges.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/sefipa/chimni_pakhar_all_songs.pdfIn PDF document text
    • https://s3.amazonaws.com/tupofelasujewas/yowhatsapp_v8._50.pdfIn PDF document text
    • https://s3.amazonaws.com/tugafebip/17679967378.pdfIn PDF document text
    • https://s3.amazonaws.com/kevava/fieldwork_report_sample_social_work.pdfIn PDF document text
    • http://rojapamun.epizy.com/fishing_report_delaware_bay_nj.pdfIn PDF document text
    • http://dafevuzadolax.epizy.com/procreate_hand_lettering_practice_sheets.pdfIn PDF document text
    • https://s3.amazonaws.com/goneduzum/an_inconvenient_truth_full_movie.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c0f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC0F8 5428 bytes
SHA-256: 76d78d6f03f72c7251e9a8b20137687ccf5a3d6eb10c0a0f3c70fb866a512e30
font_01_sfnt_off0000d368.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD368 10212 bytes
SHA-256: 0714fc7f21b1d5d74ad5165fae24c1a8fb29a5da954137b87868d5aaf6f73e6d
font_02_sfnt_off0000f6a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6A7 16096 bytes
SHA-256: 3a87a2a80cb0740ff7ad33dbd9b35031d90241dfccc5ab96a3d2c3133af9c3ca

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